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Rework error messages printing function and make more error messages red

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This commit is contained in:
Konstantin Pereiaslov
2023-06-29 00:21:45 -05:00
parent 8421817c82
commit a9604fce1f
3 changed files with 31 additions and 16 deletions
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12
main.c
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@@ -116,7 +116,7 @@ char *read_remaining_arguments_as_char(int argc,
// Allocate memory for the remaining_arguments_string
remaining_arguments_string = malloc(memory_to_be_allocated_for_remaining_arguments_string);
if (remaining_arguments_string == NULL) {
//not using print_error here intentionally
//not using fprintf_error here intentionally
fprintf(stderr, "Failed to allocate memory while parsing command to be ran.\n");
exit(1);
}
@@ -166,8 +166,8 @@ int main(int argc, char *argv[]) {
long timeout_arg_value = strtol(optarg, NULL, 10);
if (timeout_arg_value < TIMEOUT_MIN_SUPPORTED_VALUE ||
timeout_arg_value > TIMEOUT_MAX_SUPPORTED_VALUE || errno != 0) {
printf("Invalid timeout value: \"%s\". Range supported: %ld-%ld\n", optarg,
TIMEOUT_MIN_SUPPORTED_VALUE, TIMEOUT_MAX_SUPPORTED_VALUE);
fprintf_error("Invalid timeout value: \"%s\". Range supported: %ld-%ld", optarg,
TIMEOUT_MIN_SUPPORTED_VALUE, TIMEOUT_MAX_SUPPORTED_VALUE);
print_usage(argv[0]);
return 1;
}
@@ -194,7 +194,7 @@ int main(int argc, char *argv[]) {
return 1;
}
if (quiet && verbose) {
printf("Incompatible options --quiet|-q and --verbose|-v used");
fprintf_error("Incompatible options --quiet|-q and --verbose|-v used");
print_usage(argv[0]);
return 1;
}
@@ -204,7 +204,7 @@ int main(int argc, char *argv[]) {
x_display = XOpenDisplay(NULL);
if (!x_display) {
xscreensaver_is_available = 0;
print_error("Couldn't open an X11 display!\n");
fprintf_error("Couldn't open an X11 display!");
} else {
int xscreensaver_event_base, xscreensaver_error_base; //not sure why these are neeeded
xscreensaver_is_available = XScreenSaverQueryExtension(x_display, &xscreensaver_event_base,
@@ -215,7 +215,7 @@ int main(int argc, char *argv[]) {
}
if (!xscreensaver_is_available) {
print_error("No available method for detecting user idle time on the system, user will be considered idle to allow the command to finish.\n");
fprintf_error("No available method for detecting user idle time on the system, user will be considered idle to allow the command to finish.");
}
pid = run_shell_command(shell_command_to_run, pid);

30
tty_utils.c
View File

@@ -1,15 +1,31 @@
#include <stdio.h>
#include <unistd.h>
#include <stdarg.h>
#include <stdbool.h>
#include "tty_utils.h"
void print_colored_text(FILE *stream, const char *color, const char *message) {
if (isatty(fileno(stream))) {
fprintf(stream, "\033[%sm%s\033[0m\n", color, message);
} else {
fprintf(stream, "%s\n", message);
void print_colored_prefix(FILE *stream, const char *color, bool is_tty) {
if (is_tty) {
fprintf(stream, "\033[%sm", color);
}
}
void print_error(const char *message) {
print_colored_text(stderr, "31", message);
void print_colored_suffix(FILE *stream, bool is_tty) {
if (is_tty) {
fprintf(stream, "\033[0m\n");
} else {
fprintf(stream, "\n");
}
}
void fprintf_error(const char *format, ...) {
va_list args;
va_start(args, format);
bool is_tty = isatty(fileno(stderr));
print_colored_prefix(stderr, "31", is_tty);
vfprintf(stderr, format, args);
print_colored_suffix(stderr, is_tty);
va_end(args);
}

5
tty_utils.h
View File

@@ -1,7 +1,6 @@
#ifndef RUNWHENIDLE_TTY_UTILS_H
#define RUNWHENIDLE_TTY_UTILS_H
#include <stdio.h>
void print_colored_text(FILE* stream, const char* color, const char* message);
void print_error(const char* message);
void fprintf_error(const char *format, ...);
#endif //RUNWHENIDLE_TTY_UTILS_H